@ryantrav sounds like a cool job! Here is a great resource for vehicles used for your self employed work:
https://turbotax.intuit.com/tax-tips/small-business-taxes/business-use-of-vehicles/L6hi0zz
The important thing is to keep very good records of mileage and expenses incurred.
Look over this link and see if it answers all your questions.
Lori Leigh EA
